// BlogBridge -- RSS feed reader, manager, and web based service
// Copyright (C) 2002-2006 by R. Pito Salas
//
// This program is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free Software Foundation;
// either version 2 of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along with this program;
// if not, write to the Free Software Foundation, Inc., 59 Temple Place,
// Suite 330, Boston, MA 02111-1307 USA
//
// Contact: R. Pito Salas
// mailto:pitosalas@users.sourceforge.net
// More information: about BlogBridge
// http://www.blogbridge.com
// http://sourceforge.net/projects/blogbridge
//
// $Id$
//

package com.salas.bb.twitter;

import com.salas.bb.domain.QueryFeed;
import com.salas.bb.domain.querytypes.QueryType;
import com.salas.bb.core.GlobalController;

import javax.swing.*;
import java.net.URL;
import java.awt.event.ActionEvent;

/**
 * Subscribe action.
 */
public class SubscribeAction extends AbstractAction
{
    private static SubscribeAction instance;
    private String queryname;
    private String queryparam;

    /** Creates action. */
    private SubscribeAction()
    {
    }

    /**
     * Returns the instance.
     *
     * @return instance.
     */
    public static synchronized SubscribeAction getInstance()
    {
        if (instance == null) instance = new SubscribeAction();
        return instance;
    }

    /**
     * Sets user URL.
     *
     * @param url URL.
     */
    public void setUserURL(URL url)
    {
        queryparam = TwitterGateway.urlToHashtag(url);
        if (queryparam != null)
        {
            queryparam = "#" + queryparam;
            queryname  = queryparam;
        } else
        {
            // Try user URL
            queryparam = TwitterGateway.urlToScreenName(url);
            if (queryparam != null)
            {
                queryname  = "@" + queryparam;
                queryparam = "from:" + queryparam;
            }
        }

        setEnabled(queryparam != null);
    }

    public void actionPerformed(ActionEvent e)
    {
        GlobalController controller = GlobalController.SINGLETON;
        QueryFeed feed = controller.createQueryFeed(null, queryname, QueryType.TYPE_TWITTER, queryparam, 30);
        controller.selectFeed(feed, true);
    }
}
